Which movement is a conjugate movement?

• A. Vergences
• B. Incyclotorsion
• C. Dextrocycloversion
• D. Versions

Answer: (D)

Conjugate movements are eye movements where both eyes move in the same direction by the same amount, keeping the gaze aligned. This is exactly what versions describe—looking up, down, left, or right with both eyes moving together. Vergences, on the other hand, are disjunctive: the eyes move in opposite directions to adjust for depth (convergence for near, divergence for far). Incyclotorsion is rotation around the eye’s visual axis of one eye, a torsional movement rather than a coordinated binocular shift. Dextrocycloversion implies a rightward gaze with a torsional component, but the straightforward binoc ular movement that fits the common definition of conjugate gaze shifts is versions. So the movement that represents a conjugate shift of both eyes in the same direction is versions.